package filter;//package filter;
//
//import javax.servlet.*;
//import javax.servlet.annotation.WebFilter;
//import javax.servlet.http.HttpServletRequest;
//import javax.servlet.http.HttpServletResponse;
//import java.io.IOException;
//
//@WebFilter("/*")
//public class EncodingFilter implements Filter {
//    @Override
//    public void init(FilterConfig filterConfig) throws ServletException {
//        System.out.println("中文乱码处理...");
//    }
//
//    @Override
//    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
//        // 向下转换类型
//        HttpServletRequest req = (HttpServletRequest)servletRequest ;
//        HttpServletResponse resp = (HttpServletResponse)servletResponse ;
//
//        // 设置编码
//        req.setCharacterEncoding("UTF-8");
//        resp.setCharacterEncoding("UTF-8");
//
//        // 放行
//        filterChain.doFilter(req,resp);
//    }
//
//    @Override
//    public void destroy() {
//
//    }
//}
